參數(shù)資料
型號(hào)： AD7714YNZ
廠商： Analog Devices Inc
文件頁(yè)數(shù)： 27/40頁(yè)
文件大?。?/td> 0K
描述： IC ADC 24BIT SIGMA-DELTA 24-DIP
標(biāo)準(zhǔn)包裝： 15
位數(shù)： 24
采樣率（每秒）： 1k
數(shù)據(jù)接口： DSP，MICROWIRE?，QSPI?，串行，SPI?
轉(zhuǎn)換器數(shù)目： 1
功率耗散（最大）： 7mW
電壓電源： 模擬和數(shù)字
工作溫度： -40°C ~ 105°C
安裝類型： 通孔
封裝/外殼： 24-DIP（0.300"，7.62mm）
供應(yīng)商設(shè)備封裝： 24-PDIP
包裝： 管件
輸入數(shù)目和類型： 3 個(gè)差分，單極；3 個(gè)差分，雙極；5 個(gè)偽差分，單極；5 個(gè)偽差分，雙極
產(chǎn)品目錄頁(yè)面： 778 (CN2011-ZH PDF)
配用： EVAL-AD7714-3EBZ-ND - BOARD EVAL FOR AD7714
2
AD7714
REV. C
–33–
Table XV. C Code for Interfacing AD7714 to 68HC11
/* This program has read and write routines for the 68HC11 to interface to the AD7714 and the sample
program sets the various registers and then reads 1000 samples from the part. */
#include <math.h>
#include <io6811.h>
#define NUM_SAMPLES 1000 /* change the number of data samples */
#define MAX_REG_LENGTH 3 /* this says that the max length of a register is 3 bytes */
Writetoreg (int);
Read (int,char);
char *datapointer = store;
char store[NUM_SAMPLES*MAX_REG_LENGTH + 30];
void main()
{
/* the only pin that is programmed here from the 68HC11 is the /CS and this is why the PC2 bit
of PORTC is made as an output */
char a;
DDRC = 0x04; /* PC2 is an output the rest of the port bits are inputs */
PORTC | = 0x04;
/* make the /CS line high */
Writetoreg(0x27); /* set the channel AIN6/AIN6 and set the next operation as write to the filter high
register */
Writetoreg(0x4f); /* set Bipolar mode, 24 bits, boost off, all 4 MSBs of filterword to 1 */
Writetoreg(0x37); /* set the next operation as a write to the filter low register */
Writetoreg(0xA0); /* max filter word allowed for low part of the filterword */
Writetoreg(0x17); /* set the operation as a write to the mode register */
Writetoreg(0x20); /* set gain to 1, burnout current off, no filter sync, and do a self calibration */
while(PORTC & 0x10); /* wait for /DRDY to go low */
for(a=0;a<NUM_SAMPLES;a++);
{
Writetoreg(0x5f); /*set the next operation for 24 bit read from the data register */
Read(NUM_SAMPES,3);
}
Writetoreg(int byteword);
{
int q;
SPCR = 0x3f;
SPCR = 0X7f; /* this sets the WiredOR mode(DWOM=1), Master mode(MSTR=1), SCK idles high(CPOL=1), /SS
can be low always (CPHA=1), lowest clock speed(slowest speed which is master clock /32 */
DDRD = 0x18; /* SCK, MOSI outputs */
q = SPSR;
q = SPDR;
/* the read of the staus register and of the data register is needed to clear the interrupt
which tells the user that the data transfer is complete */
PORTC &= 0xfb; /* /CS is low */
SPDR = byteword;
/* put the byte into data register */
while(!(SPSR & 0x80));
/* wait for /DRDY to go low */
PORTC |= 0x4;
/* /CS high */
}
Read(int amount, int reglength)
{
int q;
SPCR = 0x3f;
SPCR = 0x7f;
/* clear the interupt */
DDRD = 0x10;
/* MOSI output, MISO input, SCK output */
while(PORTC & 0x10);
/* wait for /DRDY to go low */
PORTC & 0xfb ; /* /CS is low */
for(b=0;b<reglength;b++)
{
SPDR = 0;
while(!(SPSR & 0x80));
/* wait until port ready before reading */
*datapointer++=SPDR;
/* read SPDR into store array via datapointer */
}
PORTC|=4; /* /CS is high */
}
相關(guān)PDF資料
PDF描述
AD7894ARZ-2 IC ADC 14BIT SRL T/H LP 8SOIC
VI-B42-MW CONVERTER MOD DC/DC 15V 100W
ISL3150EIUZ-T7A IC LINEAR
AD7482BSTZ IC ADC 12BIT SAR 3MSPS 48-LQFP
AD7658BSTZ-1 IC ADC 12BIT 6CH 250KSPS 64LQFP
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
AD7714YNZ 制造商:Analog Devices 功能描述:IC ADC 24-BIT SIGMA DELTA
AD7714YR 功能描述:IC ADC 24BIT SIGMA-DELTA 24-SOIC RoHS:否 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 模數(shù)轉(zhuǎn)換器 系列:- 標(biāo)準(zhǔn)包裝:1,000 系列:- 位數(shù):12 采樣率（每秒）:300k 數(shù)據(jù)接口:并聯(lián) 轉(zhuǎn)換器數(shù)目:1 功率耗散（最大）:75mW 電壓電源:單電源 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:24-SOIC（0.295"，7.50mm 寬） 供應(yīng)商設(shè)備封裝:24-SOIC 包裝:帶卷 (TR) 輸入數(shù)目和類型:1 個(gè)單端，單極；1 個(gè)單端，雙極
AD7714YR-REEL 制造商:Analog Devices 功能描述:ADC Single Delta-Sigma 1ksps 24-bit Serial 24-Pin SOIC W T/R 制造商:Analog Devices 功能描述:ADC SGL DELTA-SIGMA 1KSPS 24BIT SERL 24SOIC W - Tape and Reel
AD7714YR-REEL7 制造商:Analog Devices 功能描述:ADC Single Delta-Sigma 1ksps 24-bit Serial 24-Pin SOIC W T/R 制造商:Analog Devices 功能描述:ADC SGL DELTA-SIGMA 1KSPS 24BIT SERL 24SOIC W - Tape and Reel
AD7714YRU 功能描述:IC ADC SIGNAL COND 3/5V 24-TSSOP RoHS:否 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 模數(shù)轉(zhuǎn)換器 系列:- 標(biāo)準(zhǔn)包裝:1,000 系列:- 位數(shù):12 采樣率（每秒）:300k 數(shù)據(jù)接口:并聯(lián) 轉(zhuǎn)換器數(shù)目:1 功率耗散（最大）:75mW 電壓電源:單電源 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:24-SOIC（0.295"，7.50mm 寬） 供應(yīng)商設(shè)備封裝:24-SOIC 包裝:帶卷 (TR) 輸入數(shù)目和類型:1 個(gè)單端，單極；1 個(gè)單端，雙極
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫(xiě)一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*